Machine for making receptacle-closures.



I. R. N. CARVALHO.

MACHINE FOR MAKING RECEPTACLE CLOSURES.

APPLICATION FILED IAN. 3l. 1914.

Patented 1311.221918 2 SHEETS-SHEET I- L. R. N. CARVALHO.

MACHINE FOR MAKING RECEPTACLE CLOSURES.

APPLICATION FILED JAN. 31. l9i4.

QQBQ. Patented Jan. 2 18.

2 SHEETS-SH LESLIE R. N. CARVALHO, 0F BROOKLYN, NEW YORK, ASSIGNOR, BYDIRECT AND MESNE ASSIGNMENTS, TO FARAGON METAL CAP CO., OF BROOKLYN, NEWYORK, A CORPO- RATION OF NEW YORK.

MACHINE FOR MAKING RECEPTACLE-CLOSURES.

Specication of Letters Patent. Patented Jan. 22, i918.

Application led January 31, 1914. Serial No. 815,671.

To all whom it may concern.'

Be it known that I, LESLIE R. N. CAR- vALHo, residing at Brooklyn, inthe county of Kings and-State of New York, have 1nvented lcertain newand useful Improvements in Machines for Making Receptacle-Closures, ofwhich the following is a specification.

This invention relates to a mechanism for the manufacture of receptacleclosures, such closures for instance as those used upon bottles and thelike, and the particular object of the invention is to provide a new andimproved machine for producing rigid closures built up from a pluralityof separately `formed sheet metal pieces, to the end that themanufacture of the closures may be materially cheapened and at the sametime result in an attractive and efficient article.

A further object is to provide a machine as above by means of which capsor closures may be formed from sheet metal with a minimum of waste, andby means of which previously coated or decorated sheet metal `may beformed into closures Without injury to or removal of the coating ordecoration.

A further object is to provide a machine by the use of which the meanswhereby the closure may be attached to a receptacle isV formed on theclosure simultaneously with a fastening together of thepieces of thesheet metal which go to make up the closure.

A still further object is to provide a machine by means of which acylindrical part and a cover part may be connected together, and bymeans of which adjacent portions of the cylindrical part and cover partare interlocked' with each other in such manner that va wedge action isalways present between said parts to retain the parts in rigid relationto each other.

Other objects vand aims of the invention, more or less specific thanthose referredto above, will be in part obvious and in part pointed outin the course of the following descriptionof the elements, combinations,

arrangements of parts and applications of principles, constituting theinvention; and the scope of protection contemplated will be indicated inthe appended claims. v

In the accompanying drawings which are to be taken as a part of thisspecification,

and in which lhave shown a merely preferredform of embodiment of theinvention:

Figure 1 is an end elevational view'of a machine embodying thisinvention.

Fig. 2 is aside elevational View yof the machine on an enlarged scale,portions being illustrated in longitudinal section for better disclosingstructural details. Y

Fig 3 is a further enlarged detailed view partly in section of theimmediate portions which act uponthe material of the closure.

Fig. 4 is a view similar to that shown in Fig. 3, illustrating the partsin operating position.

Fig. 5 is a further enlarged transverse sectional view upon the line V Vof Fig. 3, and

Fig. 6 is a transverse sectional view of a completed closure. i

Referring to the drawings for a detailed descriptlonl of the machineillustrated, the reference character L indicates a main frame supportinga head I. Spaced bearing standards 2 project upwardly from the head 1and support the main drive shaft 3 upon which are mounted a pair ofgears 4 and 5. A mandrel shaft 6 is mounted in bearings 7 which alsoproject upwardly from the head 1 in spaced relation. shaft 6 and engagesthe gear 5 so as to be positively driven thereby from the shaft 3.

A 'rocking frame 9 is mounted upon a portion of the shaft 3 andcomprises a pair of arms 10 which project laterally -from said shaftinto-"proximity to the plane of the shaft 6, being formed with spacedbearingsv A gear 8 is lixed to theV 11 at their ends.v A shaft 12 isrotatably mounted in the bearings 11 and a gear 13 is frictionallyengaged with said shaft 12 and operatively connected, through idler gear14` with the gear 4 on the shaft 3. The frame 9 also comprises alaterally extending Voperating arm 15, which is connected by' driveshaft 3. The foot lever is connected to operate a dog 24 so as to movethe dog into and out of position for arresting rotation of the cam.

By means of this construction it is apparent that rotation of thecam 19will move the lever 17 so as to swing the rocking frame 9 so that theshaft 12 carried thereby will ,move toward and away from thelongitudinal plane of the mandrel shaft 6.

. The shaft 6 extends from a point adjacent one end of the machine to apoint approximately midway in the length thereof, and the shaft 12extends from a point slightly over-lapping the adjacent end of the shaft6 toward the opposite end of the machine and the over-lappingportions ofthe two shafts are provided with suitable formations for giving shape tothe blank closure, operation of the foot lever 23 serving to bring thelapping parts into contact with each other as is already apparent,except for the interposition of portions of the closure which it will beunderstood is given shape by the pressure of these lapping portionstoward each other according to the shape of said lapping portions. llfhelapping portions thus'constitute dies.

ln operation, a closure in its blank form; comprising a smoothcylindrical part 25 having an inturned flange 26 at one end, and a coverpart 27 within the cylinder engaging the flange thereof and in turnhaving a flange 28 engaging the inner walls of the cylinder, istelescoped over the end of the shaft 6 so that the inner surface of thecover engages against the outer end surface of the shaft. The shaft 12is then caused to move toward the shaft 6 so that the die portionthereof presses against the exterior surface of the cylinder 25 andbends in portions vof the cylinder according to the cooperating shapesof the two dies. ln the instance illustrated, the die comprised in theend of the shaft 6, which may be referred to hereinafter as die Gr, isformed 'with a corrugated surface 30, in that portion adjacent the Hangeend of the cylinder, and with a threaded portion 31 in that portiontoward lthe open end of the cylinder. The other die, H, is provided withan annular corrugated portion 33 and threaded portion 34 to mate theportions 30 and 31 of the die G so as to 'A give to the cylinder alongitudinally corrugated annular upper portion 35 and a threaded lowerportion 36. The corrugations 35' obviously comprise strengthening ribsfor the closure andprovide a convenient and efficient finger grip bymeans of which the ycompleted closure may be rotated to engage thethreaded portion with cooperative formations on a receptacle.

rl`he corrugated portions 30 and 33 of the dies are so proportioned andpositioned rel-v atively to the flange 28 of the cover part 27 of theclosure that when said dies are moved toward each other and bend inportions of the cylinder part to form stiffening ribs, the upper endsurfaces of said stifening ribs wedge against the lower edge portion ofthe flange 28 and bend said flange, particularly its lower edge portion.rl`he flange being, by its nature, somewhat resilient, the bending inthereof by the upper ends of the stiiiening ribs or corrugations inducesa spring force tending to wedge the lower edge of the flange upwardlyand outwardly along the inclined surface of the ends of thecorrugations, continually urging the cover part into close and rigidengagement with the flange 26 of the cylinder. Portions of the Harige 28of the cover part not directly engaged by the yupper ends of thecorrugations are not bent to the same extent as are the engagedportions, and this results in a corrugation of the lower edge of theflange 28 to correspond and interengage with the corrugations orstiiening ribs vof the cylinder and further lock the parts together,especially against interrotation, as set forth in my co-pendingapplications, Serial Nos. 742,850, and 7 87,311.,.

u the end of the die G. The flange is annular so as to remain in thisoverlying relation during the full period of the opera-tionnotwithstanding the rotation of the flange. Any suitable means may beprovided for adjusting this flange to the proper position for clampingflange 26 of the cylinder part in close engagement with the cover partof the closure, but for this-purpose l preferably provide a rotatableclamp collar 38 upon the sha-ft 12 engaging threads 39 thereon and beingheld between the bearings 121-11. rlhe collar 38 may be rotated slightlyand clamped against further rotation relatively to the shaft. Thereafterthe colla-r rotates with the shaft and by its engagement with thebearings 11-11 retains the shaft ,in adjusted longitudinal position, aswill be understood.

After the operation of forming the corrugations and threads upon theclosure, and after the die H is withdrawn, the closure is complete andis ready to be removed. For

the purpose of effecting this removal, the

shaft 6 is preferably formed with a longi- 'tudi-nal bore and a plungerrod 40 extends therethrough and is operated by a lever el,

wenn@ or otherwise as may be desired, for engaging the inner surface ofthe cover part and thrusting the closure outwardly, the operation of theplunger rod being of course, properly timed to the movements of thedies.

In order that the corrugated `portion 30 on the die G may properlycoperate with the corrugated portion 33 of the die H, said corrugatedportion 30 is preferably formed upon an independent collar Ll2 freelyrotatably mounted upon the die and held against displacement by ahardened plate 43 which is ixed to the end of the die and provides asuitable end surface therefor and which also provides a suitable shapedannular surface for engaging against the inne-r surface of the flange 28of the cover part of the closure.

The relative movement between the collarl 42 and the remainder of die Gris occasioned by the fact `that this die is necessarily of smallerdiameter than the die H and also than the interior of the closurecylinder in order that the closure may be readily removed whe-ncompleted.

The machine is simple and is automatic in its movements. All of theoperations upon the material of the closure are simple pressingoperations and no drawing of the material is required, and thus theoriginal coatings or other decoration, which may have been applied toone or both surfaces of the material prior to the pressing operation, isnot injured.

rThe flange 37, which serves to clamp the parts of the closure together,is preferably smooth and is sufficiently wide to engage the Whole extentof the flange 26 during the operation of the dies and thereby to pressthe entire extent of the flange 26 tightly against the cover part H.

lt will be understood that various changes may be resorted to in theform, construction and arrangementof the several parts without departingfrom the spirit and scope of my invention, and hence I do not intend tobe limited to the details herein shown and described except as they maybe specifically included in the claims.

Having thus described my invention what l claim as new and desire tosecureby Letters Patent, is:

1. A machine of the class described, comprising means for supportingtheparts of a multi-part receptacle closure, and means coperating withsaid supporting means for simultaneously clamping the parts togetherand' locking said parts together, and form-l ing a closure attachingmeans upon said closure.

2. A machine of the class described, comprising a clamp having partsengaging separate parts of a multi-part receptacle closure to clamp theparts of the receptacle closure against each other, and means forproducing interlocking formations on said clamped parts of thereceptacle closure.

3. A machine of the class described, comprising a clamp having partsengaging separateparts cfa multi-part receptacle closure to clamp saidparts of the receptacle closure together, one member of said clamp beingmovable toward the other member of the clamp into a given operativeposition relative to said other member, means for providing interlockingformations upon said clamped parts of the receptacle closure while theclamp is in such given position, and means whereby said given positionmay be altered at will.

4. A machine of the class described, comprising a horn over which thecylindrical part and cover part of a multi-part receptacle closure maybe telescoped, a die movable toward said horn adapted to coperate withthe horn for locking together the cylindrical part and the cover part ofthe receptacle closure, and a clamp part movable with said die forcoperating with the horn to clamp the cylindrical part and the coverpart in close relation during operation of said die.

5. A machine of the class described, comprising a horn adapted toreceive the cylindrical part and the cover part of a multipartreceptacle closure telescoped thereover, a die movable toward said hornhaving parts to engage the cylindrical part. of the receptacle closureto press in said parts for forming stifening ribs thereon engagingagainst the cover part to serve as locking means to lock together theparts of the receptacle closure, and said die having parts for formingthreads upon the cylindrical part of the receptacle closuresimultaneously with the formation of said locking means.

6. A machine of the class described, comprisingmeans for supporting thetubular part of a receptacle closure, means movable in 'two directionstoward said supporting means having parts shaped to coperate with partsof said supporting means simultaneously to form longitudinally extendingcorrugations and closure attaching meansl on said tubular part. l

7. In a machine of the class described, rotary clamping members arrangedto receive the wall of the tubular part of a receptacle closure betweenthem, means for moving one of said clamping members in two directionstoward the other whereby lto retain said tubular part in position and tooperate upon the inner and outer surfaces of the Wall of said tubularpart, and the opposing surfaces of said clamping members being shapedsimultaneously to form a finger grip at one portion of said tubular partand closure attaching means at another portion thereof.

8. A machine of the class described, com-l prsing a die forsupportingthe tubular-part of a receptacle closure, a second die movabletoward said first die for operatin upon the receptacle closure, and oneof sai dies hav.-v ing an independently freely movable part thereonhaving portions to mate portions of the other die.

9. A machine of the class described, cornpri'sing a rotatable horn forreceiving the tubular part of a receptacle closure there-v over,' theexterior surface of said horn being shaped to form a die, a rotatabledie movable toward said horn to coperate with the surface of said hornto change the shape of the `receptacle closure, andan independentlyrotatable sleeve on saidhorn having an exterior surface portion shapedto mate a portion of said rotatable die.

metete@ 10. A machine of the class described eem prisig a air of dies,one of said ldies being rbtata le, and said rotatable dieA having anindependently rotatable sleeve thelgeon ormedwith parts to mate saidother fdie.

11". In a machine of the class. describeoh a pair oi"dies havingportions shaped to mate each other, and a freely movable member carriedby one of said dies having a surface portion shaped and arranged to matea portion of 'the other die independently of said first mentioned matingportions.

In testimony whereof l aiix my signature in the presence of tWoWitnesses.

,LESLE R. N. CARVLHO. Witnesses;

,L GERsFoRD HANDY, LOUELLA F. L1.

